The influence of etching time for clinical bracket bonded effect 酸蚀时间对临床托槽粘结效果的影响
Conclusions Computer-aided indirect brackets bonding is a new method with the advantages of time saving, accurate bracket placement and simplification of manufacturing procedure. 结论计算机辅助正畸托槽的间接粘接,能够保证托槽的精确位置,同时节约椅旁占用时间,减少实验室操作步骤,可作为托槽间接粘接的新技术。
With the engineering technology development and building needs in all areas, the industry of equipment transport has been making rapid development and has been becoming more common application. At the same time, the research of vibration reduction bracket and vibration control also have received increasing attention. 随着工程技术的发展和各个领域建设的需求,设备运输行业得以迅猛发展,在各个领域受到越来越普遍的应用,对减振支架及振动控制的研究也越来越受到关注。
Quite often, spending time with people who are not in your age bracket helps you visualize life in an entirely different manner. 大部分时候,花时间和不同年龄段的人在一起能帮你更好的以全然不同的方式看待生活。
The utility model relates to a power-driven seeding machine with labor and time saving in usage and comprises a seeding machine bracket with handle, a seeding drive wheel and a drive wheel axle. 一种使用时可省力、省时的机动播种机,包括:带把手的播种机架、播种主动轮、主动轮轮轴;播种主动轮安装在主动轮轮轴的中部;